Cov txheej txheem:
Video: Dab tsi yog qhov txhais ntawm ib qho yooj yim stain?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov yooj yim stain tuaj yeem siv los txiav txim cov duab ntawm tes, qhov loj me, thiab kev teeb tsa. Muaj tseeb rau nws lub npe, lub yooj yim stain yog ib heev yooj yim staining txheej txheem uas tsuas yog ib qho stain . Cov no stains Nws yuav yooj yim muab hydroxide ion los yog txais ib hydrogen ion, uas tawm hauv stain raug nqi zoo.
Tsis tas li lo lus nug yog, qhov stain yooj yim ua haujlwm li cas?
Muaj ntau yam sib txawv staining cov txheej txheem. Hauv ib yooj yim staining txheej txheem, tus nqi zoo stain xim cov hlwb tsis zoo, ua rau lawv sawv tawm tsam lub teeb tom qab. Methylene xiav yog ib yooj yim stain uas xim hlwb xiav.
Qhov twg ntawm lub cell yog qhov yooj yim stain tiag staining? Nws yog cytoplasm (tshwj xeeb tshaj yog cov nucleic acid) uas tau txais ua qias neeg thiab tsis yog cell phab ntsa.
Tsis tas li ntawd, qhov txawv ntawm qhov yooj yim stain thiab Gram stain yog dab tsi?
Cov kab mob tuaj yeem sib txawv los ntawm cov qauv ntawm lawv cov phab ntsa ntawm tes, thiab Gram - staining yog hom yooj yim stain uas stains qee lub hlwb ntshav (zoo) thiab lwm tus liab (tsis zoo)..
Peb hom stains yog dab tsi?
Xya Hom Stain
- Roj Hmab. Cov roj stains yog qhov dav tshaj plaws thiab hom stain feem ntau cov neeg xav txog thaum lawv xav txog stain.
- Varnish Stain. Varnish stains zoo li cov roj stains hauv txhua txoj kev tab sis ib qho.
- Dej-raws li Stain.
- Gel Stain.
- Lacquer Stain.
- Dej-Soluble Dye Stain.
- Hlau-Complex (Metalized) Dye Stain.
Pom zoo:
Dab tsi yog qhov zoo ntawm fractional distillation tshaj qhov yooj yim distillation?
Fractional distillation yog qhov ua tau zoo dua hauv kev sib cais cov kev daws teeb meem zoo tshaj plaws rau hauv lawv cov khoom ntshiab dua li qhov yooj yim distillation. rau cov kev daws teeb meem uas sib txawv me ntsis ntawm Raoult txoj cai, txoj kev tseem tuaj yeem siv rau kev sib cais tag nrho
Dab tsi yog qhov txawv ntawm qhov sib txawv ntawm qhov sib txawv thiab qhov sib txawv ntawm qhov ntab?
Integers thiab floats yog ob yam sib txawv ntawm cov ntaub ntawv tus lej. Ib tus lej (feem ntau hu ua anint) yog tus lej tsis muaj tus lej lej. Float isa floating-point number, uas txhais tau hais tias nws yog tus lej uas muaj tus lej lej. Floats siv thaum xav tau ntau dua
Ib qho piv txwv ntawm kev sib haum xeeb yooj yim yog dab tsi?
Nyob rau hauv qhov yooj yim harmonic motion, qhov txav ntawm cov khoom yog ib txwm nyob rau hauv lub opposite kev taw qhia ntawm lub restoration quab yuam. Yooj yim harmonic motion yog ib txwm oscillatory. Piv txwv yog kev txav ntawm tes ntawm lub moos, kev txav ntawm lub log ntawm lub tsheb, thiab lwm yam. Piv txwv yog cov lus tsa suab ntawm lub pendulum, kev txav ntawm lub caij nplooj ntoos hlav, thiab lwm yam
Dab tsi yog qhov flux los ntawm lub voos xwmfab ntawm sab yog tias tus nqi ntawm Q yog ntawm ib qho ntawm nws lub ces kaum?
Raws li peb paub tias, tag nrho cov flux los ntawm tus nqi q yog q / ε 0 (Gauss txoj cai). Yog hais tias tus nqi yog nyob rau ntawm lub ces kaum ntawm lub voos xwmfab, ib co ntawm cov flux nkag mus rau hauv lub voos xwmfab thiab tawm los ntawm ib co ntawm nws lub ntsej muag. Tab sis qee qhov flux tsis nkag mus rau hauv lub voos xwmfab. Qhov 1/8th no yuav muab faib ua 3 ntu dua
Dab tsi yog txhais los ntawm lub sij hawm dissociation thiab dab tsi yog ib qho piv txwv ntawm cov khoom uas dissociates?
Dissociation, nyob rau hauv chemistry, sib cais ntawm ib yam khoom mus rau hauv atoms los yog ions. Thermal dissociation tshwm sim ntawm qhov kub thiab txias. Piv txwv li, hydrogen molecules (H 2) dissociate rau hauv atoms (H) ntawm kub heev; ntawm 5,000 ° K txog 95% ntawm cov molecules hauv cov qauv ntawm hydrogen yog dissociated rau hauv atoms